Describe double fertilization.
What will be an ideal response?
The pollen grain reaches the stigma and grows a pollen tube to reach the ovule. During this time, one of the cells within the pollen tube divides to form two sperm cells. When the pollen tube reaches the embryo sac, one of the sperm cells fertilizes the egg cell, forming a zygote. The other sperm cell fuses with the two polar nuclei, forming a triploid primary endosperm nucleus.
You might also like to view...
During phagocytosis, signs and symptoms of illness peak following phagolysosome formation if the pathogen is Gram-positive.
Answer the following statement true (T) or false (F)
When a molecule cannot dissolve readily in water is can be described as which of the following?
a. polar b. hydrophobic c. a solvent d. hydrophilic
Which of the following uses plant-derived sugar for fermentation?
a. wood for shelter b. alcoholic beverages c. medicine d. spices
In this diagram of a neuron, which item, A, B, C, or D, is an axon terminal?
1.A
2.B
3.C
4.D